|—n , pl -cae, -cas|
|1.||med a spiral bandage formed by a series of overlapping figure-of-eight turns|
|2.||botany another word for spike|
|[C15: from Latin: ear of corn]|
brightest star in the zodiacal constellation Virgo and one of the 15 brightest in the entire sky, having an apparent visual magnitude of 0.98. It is a bluish star; spectroscopic examination reveals Spica to be a binary with a four-day period, its two components being of the first and third magnitudes, respectively. Spica lies about 260 light-years from the Earth
Learn more about Spica with a free trial on Britannica.com.